../ dmsp_08_ephemeris_19911211.txt 21-Jun-2023 23:44 109313 dmsp_09_ephemeris_19911211.txt 21-Jun-2023 23:44 109258 dmsp_10_ephemeris_19911211.txt 21-Jun-2023 23:44 109493 dmsp_11_ephemeris_19911211.txt 21-Jun-2023 23:44 109466